What is the color deficiency for color-blind people?

Answers (4)

• Cammie

  02/13/2014

  Actually, 98% color blind are called color deficiency, for short, CD. 92% of people with a CD are red/green deficient. They only have problems with shades of red and green, with them all looking like different shades of browns. The rest of the colors in their wolrd looks the same to them as it does to you. Almost all of them are born that way, except for some of them get it by hurting to eyes. Only about 2% of those with a CD are unable to see any colors and are truly color blind. Those people also have other serious visual problems and have very poor vision.

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• Mya harris

  02/13/2014

  One of my friend are color-blinded and he was not born that way but was caused by long-time playing computer games online. He has difficult to clarify red and green, in his eyes, those two colors are all looked brown. I think color blind is not a disease, and people have this problem are all the same with ordinary people, so it won't be a problem if you ask them about this. But avoid it if someone who cares about it.

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• Zoe Wang

  01/30/2015

  Color blindness, or color vision deficiency, is the inability or decreased ability to see color, or perceive color differences, under normal lighting conditions. Color blindness affects a significant percentage of the population.

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• Rebecca

  02/04/2015

  With this vision problem, you have difficulty distinguishing certain colors, such as blue and yellow or red and green. Color blindness (or, more accurately, color vision deficiency) is an inherited condition that affects males more frequently than females.

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